64results about How to "To achieve the purpose of angle adjustment" patented technology

The invention discloses an automobile chair framework lifting mechanism. The automobile chair framework lifting mechanism comprises a chair framework body arranged on a base, wherein the front part of the chair framework body is connected with the base through a front lifting device, and the rear part of the chair framework body is connected with the base through a rear connecting rod; the front lifting device comprises two groups of connecting rod assemblies, a synchronous driving rod is connected between the two groups of connecting rod assemblies, the connecting rod assemblies comprise upper connecting rods and lower connecting rods, the upper ends of the upper connecting rods are hinged to the chair framework body, the lower ends of the upper connecting rods are fixed on the synchronous driving rod in a sleeving manner, the upper ends of the lower connecting rods are movably arranged on the synchronous driving rod in a sleeving manner, and the lower ends of the lower connecting rods are hinged to the base. According to the technical scheme, a screw of a screw motor stretches out and draws back, the synchronous driving rod is driven to swing, the upper connecting rods fixedly connected at the two ends of the synchronous driving rod rotate, the lower connecting rods hinged to the upper connecting rods rotate, angles between the upper connecting rods and the lower connecting rods vary, the variation of the whole height of the upper and lower connecting rods is caused, and the purpose of regulating the angle of the chair framework is achieved. Meanwhile, the front lifting device is matched with the rear connecting rod, and the chair framework height is regulated.

The invention discloses a lifting auxiliary device for electric equipment installation, which comprises a moving base, and limit columns are fixedly installed on the four corners of the top of the moving base, and the sliding sleeve on the limit column is provided with a limit cover. The top of the cover is fixedly installed with the same support plate, and the bottom of the support plate is fixedly installed with a lifting plate, and two transmission holes are symmetrically opened on the lifting plate, and a limit block is slidably connected in the drive hole, and the limit block U-shaped frames are rotatably connected to the upper part, and both ends of the two U-shaped frames extend to the outside of the lifting plate and are rotatably connected with the top of the mobile base. The present invention can realize clamping and fixing, lifting height and adjustment of electric equipment, so that good convenience can be provided when installing electric equipment, and accessories or fasteners can be transported upwards conveniently without repeated support plate Lifting is performed, so it has good practicality.